Switching device



(No Model.) 2 Sheets--Sheet 1. A. LEVIN. SWITCHING DEVICE.

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SWITCHING DEVICE.

No. 500,335. Patented June 27, 1893.

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THE NORRIS PETERS co. FNOTQ-LITHQ, WASHINGTON. o. c.

UNITED STATES PATENT EErcE.

ARVID M. LEVIN, OF CLEVELAND, OHIO.

SWITCHING DEVICE.

SPECIFICATION forming part of Letters Patent No. 500,335, dated June2'7, 1893.

Application filed January 20, 1892. Serial No. 418,725- .No model.)

To all whom it may concern.-

Be it known that I, ARVID M. LEVIN, a citizen of Sweden, and a residentof Cleveland, county of Ouyahoga, State of Ohio, have invented certainnew and useful Improvements in Switching Devices, of which I herebydeclare the following to be a full, clear, and exact description, suchas will enable others skilled in the art to which it appertains to makeand use the same.

My invention relates to improvements in switching mechanism for streetcar service, and its objects are to provide means for operating thetrack switch from the car platform with certainty and precision.

My invention consists in the combination and arrangement of the variousparts and construction of details, as hereinafter described, shown inthe accompanying drawings, and more specifically pointed out in theclaims.

Figure 1 is a side elevation of car and attached mechanism withlongitudinal section of track and attached mechanism. Fig.- 2 is an endelevation of car platform and attached mechanism. Fig. 3 is a plan viewof track and switch points. Fig. 4 is an enlarged side View of mechanismattached to car. Fig. 5 is a plan view of same. Fig. 6 is an enlargedplan of track, lever and box. Fig. 7 is a sectional elevation of same,the section being taken on line x0c Fig. 6. Fig. 8 is a transversesection on line y-y Fig. 7. Fig. 9 is a view of operating wheel, andFig. 10 a vertical central section of same.

By referring to the drawings, it Will be seen that A is a leverprojecting toward the front of the platform and pivoted at a to thebottom of the car upon the support A. To the same support A are alsopivoted at a, the short parallel arms B, forming the lever B, to thefree extremity of which is pivoted the disk O on spindle c. The lever Aextends beyond the bearing A and is enlarged at A to receive thevertical rod D, which is pivoted at d, between the arms B B; a spring Dupon the rod E separates the arm and bars B. The special function ofthis spring will be specifically described hereinafter. A nut 6, uponthe rod E, secures the parts together.

Adjacent to the track rail, as shown in Figs. 1, 2, 3, 6 and S, isplaced the box F inclosing the bell crank G, the longer arm of which Glies directly below the flange of the wheel, not touching it, but asshown in Fig. 2, vertically underneath the disk 0 as the car passes. Theshorter arm of the bell crank isrounded at the extremity g and issupported in the foot plate F of the box F at f where it has a rockingmovement. A full view of this crank is shown in Fig. 1. A slot f, at theupper edge of the box F permits the disk 0 to engage the longer arm ofthe bell crank as it passes.

Pivoted to the angle of the bell crank at g is the forked head h of therod H, which passes underneath the rail flange until its extremity h ispivoted to the cross-bar I which extends from rail to rail and isaccurately pivoted at 1' within the box J. On the opposite track thesame construction is repeated, the movement given the cross-bar Ibeingthe reverse to that given by the first mentioned side.

K is the tongue or point of the switch, which is pivotally attached at hto one extremity of the rod L, the other extremity of which is attachedpivotally to the projection I of the cross-bar I in its central part.The rod L is attached at K to the tongue, at-the proper distance fromits pivotal point K as to give the necessary throw.

The operating mechanism for the disk O and lever A upon the car is seento be a wheel M and a rope or chain N, so arranged as to turn in eitherdirection and raise either lever A, as desired; when one side of therope is tightened and Wound on the wheel, the other side in this caseWill be slackened, and the longer and heavier end A drops of its ownaccord. This end may be especially weighted as at A for this purpose.

In Figs. 9 and 10, O is the standard provided with the box 0, inclosingthe wheel which is supported on the spindle P. The whole is securelyattached to the dash board by bolt Q, and to the floor at R.

A wrench handle S is shown, provided with the spring actuated catch T,which engages one of the notches t in the arm of the case 0, to hold thewheel in any desired position.

Bolts S S in slots S S secure the catch to the winch handle.

As seen in Fig. 6, a guide way is formed for the disk 0 to the slot, bymeans of the flange f which is turned away from the track at f for thatpurpose.

An addition at F is added to the box for cleaning refuse from the box. fis a stop to prevent tipping the bell crank too far.

In operation, when approaching a switch, the wheel is turned either wayaccording as it is desired to move the tongue to the right or left, theweighted leverA is pulled up, thus depressing the hearing A upon thespring D, and thus pushing down the armsB with disk 0, upon the track.The springD being compressed will keep down the disk 0 upon the track inspite of the jolting and pitching movements of the car body. The diskwill readily find its way into the groove f and will depress the longarm of the bell crank C and turn the switch. The movement of the bellcranks will be reciprocal, one being up while the other is down, so thateither will be ready for use at any time.

The advantage of this device will be obvious in the time saved andprecision acquired by its use.

It will readily be seen that any common form of lever can be substitutedfor the wheel and cord.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. In switch mechanism the combination with depending car mechanism asdescribed of duplicate rail sections on opposite sides provided withlongitudinal slots f therein, and adjacent drain boxes, F and F socketsf, and stops f in boxes F, and bell crank levers G, each having one armprojecting horizontally underneath one of said slots and the otherresting in said socket, and switch operating rods, I-I, pivoted to theangles of said levers, substantially as described.

2. In switch operating mechanism the combination of bell cranks G,provided with extended arms g, boxes F, inclosing said levers, providedwith bearings f, slats f stops f and rods H, with cross bar I providedwith extension 1 and rod L, connecting the switch point therewith,substantially as described.

3. In switch operating mechanism the combination of duplicate bell-cranklevers, G, G, underneath the treads, of opposite track rails, the saidlevers being provided with horizontal longer arms G, G, and verticalshort arms 9 g, with operating yoke connecting the said levers with theswitch point whereby the depression of one lever arm G will raise theopposite arm, and throw the switch point substantially as described.

4.. In switch mechanism the combination of duplicate bell cranksunderneath the treads of opposite track rails the said levers beingprovided with long horizontal arms and short vertical arms withoperating yoke connecting the said levers with the switch point wherebythe depression of one horizontal arm will throw the switch point andraise the opposite arm and inclosing boxes for the bell crank levers,provided with rests f. stops, f and slots f, substantially as set forth.

5. In switch operating mechanism the combination of duplicate bell cranklevers G, G, located underneath the treads of opposite track rails, andprovided with long horizontal and short vertical arms, with inclosingboxes for the levers provided with longitudinal slots, f flanges fguides f stops f and rests f, operating yoke connecting the levers Gwiththe switch point and car mechanism substantially as set forth wherebyone lever will be depressed, the switch point thrown and the other leverraised as and for the purpose set forth.

ARVID M. LEVIN.

Witnesses:

A. U. SHELDON, WILLIAM J. W001).

